Upcoming and planned experiments combining increasingly intense lasers and energetic
particle beams will access new regimes of nonlinear, relativistic, quantum effects. This …

When solids are exposed to intense laser fields whose forces are comparable to the binding
forces of valence electrons in crystals, nonlinear optics of solids advances to the …

Optical bound states in the continuum (BICs) underpin the existence of strongly localized
waves embedded into the radiation spectrum. Here we bring the concept of BICs to the field …

Key properties of quantum materials stem from dynamic interaction chains that connect
stable electronic quasiparticles through short-lived coherences, which are difficult to control …

High-harmonic generation in atomic gases has been studied for decades, and has formed
the basis of attosecond science. Observation of high-order harmonics from bulk crystals was …

High-harmonic generation (HHG) in solids has emerged in recent years as a rapidly
expanding and interdisciplinary field, attracting attention from both the condensed-matter …

High-harmonic generation (HHG) in bulk solids permits the exploration of materials in a new
regime of strong fields and attosecond timescales,,,,,. The generation process has been …

When intense light interacts with an atomic gas, recollision between an ionizing electron and
its parent ion creates high-order harmonics of the fundamental laser frequency. This sub …

Acceleration and collision of particles has been a key strategy for exploring the texture of
matter. Strong light waves can control and recollide electronic wavepackets, generating high …

Strong-field laser excitation of solids can produce extremely nonlinear electronic and optical
behaviour. As recently demonstrated, this includes the generation of high harmonics …